What is CPC F04C2/025?

CPC F04C2/025 is the Cooperative Patent Classification code for “the moving and the stationary member having co-operating elements in spiral form.”

How many patents are filed under CPC F04C2/025 (the moving and the stationary member having co-operating elements in spiral form)?

Our database includes 177 publications tagged with this CPC code.

Publication counts under this code: 25 in 2024 vs 12 in 2025 (latest complete years).

the moving and the stationary member having co-operating elements in spiral form · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F04C2/025
Official title	{the moving and the stationary member having co-operating elements in spiral form}
Display label	the moving and the stationary member having co-operating elements in spiral form
Total patents	177

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is declining.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Answers are generated from the same data shown on this page.

What is CPC F04C2/025?: CPC F04C2/025 is the Cooperative Patent Classification code for “the moving and the stationary member having co-operating elements in spiral form.”
How many patents are filed under CPC F04C2/025 (the moving and the stationary member having co-operating elements in spiral form)?: Our database includes 177 publications tagged with this CPC code.
Is patent activity under CPC F04C2/025 growing?: Publication counts under this code: 25 in 2024 vs 12 in 2025 (latest complete years).